linux-kernel - Re: [PATCH 7/7] drm/amdgpu: remove set but not used variable 'mc_shared_chmap'

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Message-ID: <CADnq5_MjhnBA-mUwPgdHRuit+=CgZjs0HC+JHqeD_gmciaONFQ@mail.gmail.com>
Date:   Wed, 6 Nov 2019 12:15:30 -0500
From:   Alex Deucher <alexdeucher@...il.com>
To:     yu kuai <yukuai3@...wei.com>
Cc:     "Deucher, Alexander" <alexander.deucher@....com>,
        Christian Koenig <christian.koenig@....com>,
        Chunming Zhou <David1.Zhou@....com>,
        Dave Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        "Zhou, Jammy" <Jammy.Zhou@....com>, tiancyin <tianci.yin@....com>,
        Sam Ravnborg <sam@...nborg.org>,
        "Tuikov, Luben" <luben.tuikov@....com>, yi.zhang@...wei.com,
        LKML <linux-kernel@...r.kernel.org>,
        Maling list - DRI developers 
        <dri-devel@...ts.freedesktop.org>,
        zhengbin <zhengbin13@...wei.com>,
        amd-gfx list <amd-gfx@...ts.freedesktop.org>
Subject: Re: [PATCH 7/7] drm/amdgpu: remove set but not used variable 'mc_shared_chmap'

On Mon, Nov 4, 2019 at 8:54 AM yu kuai <yukuai3@...wei.com> wrote:
>
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c: In function
> ‘gfx_v8_0_gpu_early_init’:
> drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c:1713:6: warning: variable
> ‘mc_shared_chmap’ set but not used [-Wunused-but-set-variable]
>
> Fixes: 0bde3a95eaa9 ("drm/amdgpu: split gfx8 gpu init into sw and hw parts")
> Signed-off-by: yu kuai <yukuai3@...wei.com>

Looks like gfx_v7_0.c and gfx_v6_0.c could have the same treatment.
Care to send patches?

Applied the series.  Thanks!

Alex

> ---
>  drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> index e4c645d..80b7958 100644
> --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
> @@ -1710,7 +1710,7 @@ static int gfx_v8_0_do_edc_gpr_workarounds(struct amdgpu_device *adev)
>  static int gfx_v8_0_gpu_early_init(struct amdgpu_device *adev)
>  {
>         u32 gb_addr_config;
> -       u32 mc_shared_chmap, mc_arb_ramcfg;
> +       u32 mc_arb_ramcfg;
>         u32 dimm00_addr_map, dimm01_addr_map, dimm10_addr_map, dimm11_addr_map;
>         u32 tmp;
>         int ret;
> @@ -1850,7 +1850,6 @@ static int gfx_v8_0_gpu_early_init(struct amdgpu_device *adev)
>                 break;
>         }
>
> -       mc_shared_chmap = RREG32(mmMC_SHARED_CHMAP);
>         adev->gfx.config.mc_arb_ramcfg = RREG32(mmMC_ARB_RAMCFG);
>         mc_arb_ramcfg = adev->gfx.config.mc_arb_ramcfg;
>
> --
> 2.7.4
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx

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